Sweat vest: Get a one or two ladies sauna-effect sweat vest tops. Sauna-effect: Produces a sauna-like effect by sealing in your natural body heat and increasing your core temperature. Training vest: Wearing it while exercising could help increase your weight loss, accelerate your metabolism and help to burn calories. Sizes: Choose from sizes S-M or L-XL (see size chart in Full Details below). : High compression design helps to shape your body, correct your posture and compress your stomach. Design: Made with heat trapping blue polymer fabric lining and featuring a middle zipper for easy fuss-free putting on and taking off. | Women's Sauna-Effect Sweat Vest Top - Black | Wowcher